- 150W AC/DC PSU -* The features of 150W AC/DC Power Supply Unit (PSU) is to provide the stable +48V DC power to operate C-band 10W BUCs, even if inner power supply of the modem is not capable enough to operate these BUCs.* The AC/DC box, which is having enough power supply of 150W as well as having the bias-tee which enable to pass 10MHz reference signal and L-band IF signal from the modem, is operated by AC Power and enable to operate these BUCs.* In addition, the aluminum housing with corrosion-proof treatment on the surface is employed with the box to use perfectly as the indoor unit.